Combine like terms using distributive property of addition.
(Add: 1 + 9 = 10).
(Distributive property: a(b+c) = ab + ac)
The simplified expression is .
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(Add: 1 + 9 = 10).![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c03c2956439e3638ecf45305f4bf8343.png\")
(Distributive property: a(b+c) = ab + ac)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
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.